In a world where Kaijus threaten humanity, Kafka Hibino is immediately on the scene to scrape their mushy remains off the street. Because one thing Kafka is definitely not is a hero. A little too old and a little too weak, he still clings to his dream of finally being able to join the Japanese Defense Corps. His childhood friend Mina has shown the way, and it would be a joke if he didn't get to blast some Kaijus himself someday.